这一装置可用于水力发电机，能产生巨大的能量，也可做成轻便的小型发电设备，放进鞋跟里。
These could be used to produce energy on a large scale, in wave-power generators, or on a small scale, by integrating small, lightweight devices into the heels of shoes.
应用领域： 车床，磨床，轧机，钻压机，水力发电机，塔吊，螺杆轴的主轴，汽车转向装置等。
Application: Main shaft of machine tool, auto steering structure, main shaft of lathe, grinder, milling machine, drill press, water power dynamotor, tower crane, screw shaft and so on.
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